This edited volume is a collection of studies guided by theoretical and practical interdisciplinary approaches to family and school involvement in multilingual education and heritage language development featuring contributors with expertise in applied linguistics, sociolinguistics, language policy and education. The authors of this volume discuss multilingualism and multiculturalism in various geographical areas, settings, and levels of education, from a theoretical and practical point of view. They present a wide variety of theoretical perspectives, teachers, and students’ views as well as other stakeholders such as policy makers, authorities and parents on family and school involvement in multilingual education and heritage language development.